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5.2 Radioactivity

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Question 293

A radioactive source emitting β\betaβ-particles is used for a demonstration in a physics laboratory.

Which safety precaution must be taken by the teacher carrying out the experiment to minimize radiation exposure?

A

Handle the source with long-handled tongs.

B

Wear safety goggles.

C

Place the source on a heat-proof mat.

D

Always point the source towards the class.

Markscheme

5.2 Radioactivity Questions

  1. IGCSE
  2. /Physics
  3. /5.2 Radioactivity

484 exam-style questions on CIE IGCSE Physics 5.2 Radioactivity, covering 5.2.1 Background radiation and measuring count rate, 5.2.2a Alpha, beta and gamma emission, 5.2.2b Deflection and ionising effects of nuclear radiation, 5.2.3a Radioactive decay, 5.2.3b Effects of decay on the nucleus and decay equations, 5.2.4a Half-life, 5.2.4b Choosing isotopes for applications, and 5.2.5 Effects of ionising radiation and safety precautions. Each one has a worked solution and a mark scheme showing where the marks go.

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